function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();

function toggleTeamIcon()
{
   if (this.alt == 'current') return;
   
  re = /.*_h\.jpg/
  if (this.src.match(re))
    this.src = this.src.replace('_h.jpg', '.jpg');
  else
    this.src = this.src.replace('.jpg', '_h.jpg');
}

function initTeamIconHover()
{
  node = document.getElementById('team-navigation');
  if (node != null)
  {
    buttons = node.getElementsByTagName("img");
    for (var c = 0; c < buttons.length; c++)
    {
      addEvent(buttons[c], 'mouseover', toggleTeamIcon);
      addEvent(buttons[c], 'mouseout',  toggleTeamIcon);
    }
  }
}
addEvent(window, 'load', initTeamIconHover);

/* Boardbag Search */
function initBoardBagSearch()
{
  var form = document.getElementById('boardbag-search');
  if (form && form != null)
  {
    form.onsubmit = function() {
      var query = document.getElementById('boardbag-search-query');
      query.value = this.size.value + " " + this.trip.value;
      return true;
    }
  }
}
addEvent(window, 'load', initBoardBagSearch);

function toggleMainNavigationHover()
{
  if (this.alt == 'current') return;
   
  re = /.*\/btn-down.*\.png/
  if (this.src.match(re))
    this.src = this.src.replace('btn-down-nav', 'btn-nav');
  else
    this.src = this.src.replace('btn-nav', 'btn-down-nav');
}

function initMainNavigationHover()
{
  node = document.getElementById('main-navigation');
  
  if (node != null)
  {
    buttons = node.getElementsByTagName("img");
    for (var c = 0; c < buttons.length; c++)
    {
      re = /.*\/btn-down.*\.png/
      if (!buttons[c].src.match(re))
      {
        addEvent(buttons[c], 'mouseover', toggleMainNavigationHover);
        addEvent(buttons[c], 'mouseout',  toggleMainNavigationHover);
      }
    }
  }
}
addEvent(window, 'load', initMainNavigationHover);